Finding the Fourth Proportional to 1,643,416.90, 2,465,125.35 and 1,010,277.70
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Solution
The fourth proportional to 1,643,416.90, 2,465,125.35 and 1,010,277.70 is: 1,515,416.55
Step by Step Solution
- Step 1: Write the proportion equation
1,643,416.90 : 2,465,125.35 = 1,010,277.70 : x - Step 2: Convert to fraction form
1,643,416.90/2,465,125.35 = 1,010,277.70/x - Step 3: Cross multiply
1,643,416.90x = 2,465,125.35 × 1,010,277.70 - Step 4: Simplify right side
1,643,416.90x = 2,490,461,168,809.69 - Step 5: Solve for x
x = 2,490,461,168,809.69/1,643,416.90 - Step 6: Final answer
x = 1,515,416.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.